<script
  setup
  lang='ts'
>
// 获取屏幕边界到安全区域距离
import {getGoodsByIdAPI} from "@/services/goods.d.ts";
import AddressPanel from "@/pages/goods/components/AddressPanel.vue";
import ServicePanel from "@/pages/goods/components/ServicePanel.vue";
import {onLoad} from "@dcloudio/uni-app";
import {computed, ref} from "vue";
import {GoodsResult} from "@/types/goods.d.ts";
import {postMemberCartAPI} from "@/services/cart";

const {safeAreaInsets} = uni.getSystemInfoSync()

// 接收页面参数
const query = defineProps<{
  id: string
}>()

const currentIndex = ref(0)

const goods = ref<GoodsResult>()

const onChange: UniHelper.SwiperOnChange = (ev) => {
  currentIndex.value = ev.detail.current
}

const getGoodsById = async () => {
  let res = await getGoodsByIdAPI(query.id)
  goods.value = res.result
}

// uni-ui 弹出层组件 ref
const popup = ref<{
  open: (type?: UniHelper.UniPopupType) => void
  close: () => void
}>()

const popupName = ref<'address' | 'service'>()
const openPopup = (name: typeof popupName.value) => {
  // 修改弹出层名称
  popupName.value = name
  popup.value?.open()
}

// 点击图片时
const onTapImage = (url: string) => {
  // 大图预览
  uni.previewImage({
    current: url,
    urls: goods.value!.mainPictures,
  })
}


const isShowSku = ref(false)
const localdata = ref({} as SkuPopupLocaldata)

// 按钮模式
enum SkuMode {
  Both = 1,
  Cart = 2,
  Buy = 3,
}

const mode = ref<SkuMode>(SkuMode.Cart)
// 打开SKU弹窗修改按钮模式
const openSkuPopup = (val: SkuMode) => {
  // 显示SKU弹窗
  isShowSku.value = true
  // 修改按钮模式
  mode.value = val
}

// SKU组件实例
const skuPopupRef = ref()
// 计算被选中的值
const selectArrText = computed(() => {
  return skuPopupRef.value.selectArr?.join(' ').trim() || '请选择商品规格'
})

// 加入购物车事件
const onAddCart = async (ev: SkuPopupEvent) => {
  await postMemberCartAPI({ skuId: ev._id, count: ev.buy_num })
  await uni.showToast({title: '添加成功'})
  isShowSku.value = false
}

const getGoodsByIdData = async () => {
  const res = await getGoodsByIdAPI(query.id)
  goods.value = res.result
  // SKU组件所需格式
  localdata.value = {
    _id: res.result.id,
    name: res.result.name,
    goods_thumb: res.result.mainPictures[0],
    spec_list: res.result.specs.map((v) => {
      return {
        name: v.name,
        list: v.values,
      }
    }),
    sku_list: res.result.skus.map((v) => {
      return {
        _id: v.id,
        goods_id: res.result.id,
        goods_name: res.result.name,
        image: v.picture,
        price: v.price * 100, // 注意：需要乘以 100
        stock: v.inventory,
        sku_name_arr: v.specs.map((vv) => vv.valueName),
      }
    }),
  }
}

// 页面加载
onLoad(() => {
  getGoodsByIdData()
})
</script>

<template>
  <scroll-view
    scroll-y
    class='viewport'
  >
    
    <!--SKUs弹窗组件-->
    <vk-data-goods-sku-popup
      :mode="mode"
      :localdata='localdata'
      v-model='isShowSku'
      ref='skuPopupRef'
      add-cart-background-color='#FFA868'
      buy-now-background-color='#27BA9B'
      :actived-style='{
        color: "#27BA9B",
        borderColor: "#27BA9B",
        backgroundColor: "#E9F8F5"
      }'
      @add-cart='onAddCart'
    />
    
    <!-- 基本信息 -->
    <view class='goods'>
      <!-- 商品主图 -->
      <view class='preview'>
        <swiper
          @change='onChange'
          circular
        >
          <swiper-item
            v-for='item in goods?.mainPictures'
            :key='item'
          >
            <image
              @tap='onTapImage(item)'
              mode='aspectFill'
              :src='item'
            />
          </swiper-item>
        </swiper>
        <view class='indicator'>
          <text class='current'>{{ currentIndex + 1 }}</text>
          <text class='split'>/</text>
          <text class='total'>{{ goods?.mainPictures.length }}</text>
        </view>
      </view>
      
      <!-- 商品简介 -->
      <view class='meta'>
        <view class='price'>
          <text class='symbol'>¥</text>
          <text class='number'>{{ goods?.price }}</text>
        </view>
        <view class='name ellipsis'>{{ goods?.name }}</view>
        <view class='desc'> {{ goods?.desc }}</view>
      </view>
      
      <!-- 操作面板 -->
      <view class='action'>
        <view
          @tap='openSkuPopup(SkuMode.Both)'
          class='item arrow'
        >
          <text class='label'>选择</text>
          <text class='text ellipsis'> {{ selectArrText }}</text>
        </view>
        <view
          @tap="openPopup('address')"
          class='item arrow'
        >
          <text class='label'>送至</text>
          <text class='text ellipsis'> 请选择收获地址</text>
        </view>
        <view
          @tap="openPopup('service')"
          class='item arrow'
        >
          <text class='label'>服务</text>
          <text class='text ellipsis'> 无忧退 快速退款 免费包邮</text>
        </view>
      </view>
    
    </view>
    
    <!-- 商品详情 -->
    <view class='detail panel'>
      <view class='title'>
        <text>详情</text>
      </view>
      <view class='content'>
        <view class='properties'>
          <!-- 属性详情 -->
          <view
            class='item'
            v-for='item in goods?.details.properties'
            :key='item.name'
          >
            <text class='label'>{{ item.name }}</text>
            <text class='value'>{{ item.value }}</text>
          </view>
        </view>
        <!-- 图片详情 -->
        <image
          class='image'
          v-for='item in goods?.details.pictures'
          :key='item'
          mode='widthFix'
          :src='item'
        ></image>
      </view>
    </view>
    
    <!-- uni-ui 弹出层 -->
    <uni-popup
      ref='popup'
      type='bottom'
      background-color='#fff'
    >
      <AddressPanel
        v-if="popupName === 'address'"
        @close='popup?.close()'
      />
      <ServicePanel
        v-if="popupName === 'service'"
        @close='popup?.close()'
      />
    </uni-popup>
    
    <!-- 同类推荐 -->
    <view class='similar panel'>
      <view class='title'>
        <text>同类推荐</text>
      </view>
      <view class='content'>
        <navigator
          v-for='item in goods?.similarProducts'
          :key='item.id'
          class='goods'
          hover-class='none'
          :url='`/pages/goods/goods?id=${item.id}`'
        >
          <image
            class='image'
            mode='aspectFill'
            :src='item.picture'
          ></image>
          <view class='name ellipsis'>{{ item.name }}</view>
          <view class='price'>
            <text class='symbol'>¥</text>
            <text class='number'>{{ item.price }}</text>
          </view>
        </navigator>
      </view>
    </view>
  </scroll-view>
  
  <!-- 用户操作 -->
  <view
    class='toolbar'
    :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }"
  >
    <view class='icons'>
      <button class='icons-button'>
        <text class='icon-heart'></text>
        收藏
      </button>
      <button
        class='icons-button'
        open-type='contact'
      >
        <text class='icon-handset'></text>
        客服
      </button>
      <navigator
        class='icons-button'
        url='/pages/cart/cart2'
        open-type="navigate"
      >
        <text class='icon-cart'></text>
        购物车
      </navigator>
    </view>
    <view class='buttons'>
      <view
        class='addcart'
        @tap='openSkuPopup(SkuMode.Cart)'
      > 加入购物车
      </view>
      <view
        class='buynow'
        @tap='openSkuPopup(SkuMode.Buy)'
      > 立即购买
      </view>
    </view>
  </view>
</template>

<style lang='scss'>
page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.viewport {
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;
  
  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;
    
    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #27ba9b;
    }
    
    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;
  
  .preview {
    height: 750rpx;
    position: relative;
    
    .image {
      width: 750rpx;
      height: 750rpx;
    }
    
    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;
      
      .current {
        font-size: 26rpx;
      }
      
      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }
      
      .total {
        font-size: 24rpx;
      }
    }
  }
  
  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;
    
    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      background-color: #35c8a9;
    }
    
    .number {
      font-size: 56rpx;
    }
    
    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }
    
    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }
    
    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }
  
  .action {
    padding-left: 20rpx;
    
    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;
      
      &:last-child {
        border-bottom: 0 none;
      }
    }
    
    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }
    
    .text {
      flex: 1;
      -webkit-line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;
  
  .content {
    margin-left: -20rpx;
    
    .image {
      width: 100%;
    }
  }
  
  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;
    
    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }
    
    .label {
      width: 200rpx;
    }
    
    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  .content {
    padding: 0 20rpx 200rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    
    .goods {
      width: 340rpx;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }
    
    .image {
      width: 300rpx;
      height: 260rpx;
    }
    
    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }
    
    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }
    
    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }
  
  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;
  
  .buttons {
    display: flex;
    
    & > view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }
    
    .addcart {
      background-color: #ffa868;
    }
    
    .buynow,
    .payment {
      background-color: #27ba9b;
      margin-left: 20rpx;
    }
  }
  
  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    flex: 1;
    
    .icons-button {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;
      
      &::after {
        border: none;
      }
    }
    
    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>
